2 # The TCM v4 multi-protocol fabric module generation script for drivers/target/$NEW_MOD
4 # Copyright (c) 2010 Rising Tide Systems
5 # Copyright (c) 2010 Linux-iSCSI.org
7 # Author: nab@kernel.org
10 import subprocess
as sub
20 fabric_mod_init_port
= ""
26 def tcm_mod_create_module_subdir(fabric_mod_dir_var
):
28 if os
.path
.isdir(fabric_mod_dir_var
) == True:
31 print "Creating fabric_mod_dir: " + fabric_mod_dir_var
32 ret
= os
.mkdir(fabric_mod_dir_var
)
34 tcm_mod_err("Unable to mkdir " + fabric_mod_dir_var
)
38 def tcm_mod_build_FC_include(fabric_mod_dir_var
, fabric_mod_name
):
39 global fabric_mod_port
40 global fabric_mod_init_port
43 f
= fabric_mod_dir_var
+ "/" + fabric_mod_name
+ "_base.h"
44 print "Writing file: " + f
48 tcm_mod_err("Unable to open file: " + f
)
50 buf
= "#define " + fabric_mod_name
.upper() + "_VERSION \"v0.1\"\n"
51 buf
+= "#define " + fabric_mod_name
.upper() + "_NAMELEN 32\n"
53 buf
+= "struct " + fabric_mod_name
+ "_nacl {\n"
54 buf
+= " /* Binary World Wide unique Port Name for FC Initiator Nport */\n"
55 buf
+= " u64 nport_wwpn;\n"
56 buf
+= " /* ASCII formatted WWPN for FC Initiator Nport */\n"
57 buf
+= " char nport_name[" + fabric_mod_name
.upper() + "_NAMELEN];\n"
58 buf
+= " /* Returned by " + fabric_mod_name
+ "_make_nodeacl() */\n"
59 buf
+= " struct se_node_acl se_node_acl;\n"
62 buf
+= "struct " + fabric_mod_name
+ "_tpg {\n"
63 buf
+= " /* FC lport target portal group tag for TCM */\n"
64 buf
+= " u16 lport_tpgt;\n"
65 buf
+= " /* Pointer back to " + fabric_mod_name
+ "_lport */\n"
66 buf
+= " struct " + fabric_mod_name
+ "_lport *lport;\n"
67 buf
+= " /* Returned by " + fabric_mod_name
+ "_make_tpg() */\n"
68 buf
+= " struct se_portal_group se_tpg;\n"
71 buf
+= "struct " + fabric_mod_name
+ "_lport {\n"
72 buf
+= " /* SCSI protocol the lport is providing */\n"
73 buf
+= " u8 lport_proto_id;\n"
74 buf
+= " /* Binary World Wide unique Port Name for FC Target Lport */\n"
75 buf
+= " u64 lport_wwpn;\n"
76 buf
+= " /* ASCII formatted WWPN for FC Target Lport */\n"
77 buf
+= " char lport_name[" + fabric_mod_name
.upper() + "_NAMELEN];\n"
78 buf
+= " /* Returned by " + fabric_mod_name
+ "_make_lport() */\n"
79 buf
+= " struct se_wwn lport_wwn;\n"
84 tcm_mod_err("Unable to write f: " + f
)
88 fabric_mod_port
= "lport"
89 fabric_mod_init_port
= "nport"
93 def tcm_mod_build_SAS_include(fabric_mod_dir_var
, fabric_mod_name
):
94 global fabric_mod_port
95 global fabric_mod_init_port
98 f
= fabric_mod_dir_var
+ "/" + fabric_mod_name
+ "_base.h"
99 print "Writing file: " + f
103 tcm_mod_err("Unable to open file: " + f
)
105 buf
= "#define " + fabric_mod_name
.upper() + "_VERSION \"v0.1\"\n"
106 buf
+= "#define " + fabric_mod_name
.upper() + "_NAMELEN 32\n"
108 buf
+= "struct " + fabric_mod_name
+ "_nacl {\n"
109 buf
+= " /* Binary World Wide unique Port Name for SAS Initiator port */\n"
110 buf
+= " u64 iport_wwpn;\n"
111 buf
+= " /* ASCII formatted WWPN for Sas Initiator port */\n"
112 buf
+= " char iport_name[" + fabric_mod_name
.upper() + "_NAMELEN];\n"
113 buf
+= " /* Returned by " + fabric_mod_name
+ "_make_nodeacl() */\n"
114 buf
+= " struct se_node_acl se_node_acl;\n"
116 buf
+= "struct " + fabric_mod_name
+ "_tpg {\n"
117 buf
+= " /* SAS port target portal group tag for TCM */\n"
118 buf
+= " u16 tport_tpgt;\n"
119 buf
+= " /* Pointer back to " + fabric_mod_name
+ "_tport */\n"
120 buf
+= " struct " + fabric_mod_name
+ "_tport *tport;\n"
121 buf
+= " /* Returned by " + fabric_mod_name
+ "_make_tpg() */\n"
122 buf
+= " struct se_portal_group se_tpg;\n"
124 buf
+= "struct " + fabric_mod_name
+ "_tport {\n"
125 buf
+= " /* SCSI protocol the tport is providing */\n"
126 buf
+= " u8 tport_proto_id;\n"
127 buf
+= " /* Binary World Wide unique Port Name for SAS Target port */\n"
128 buf
+= " u64 tport_wwpn;\n"
129 buf
+= " /* ASCII formatted WWPN for SAS Target port */\n"
130 buf
+= " char tport_name[" + fabric_mod_name
.upper() + "_NAMELEN];\n"
131 buf
+= " /* Returned by " + fabric_mod_name
+ "_make_tport() */\n"
132 buf
+= " struct se_wwn tport_wwn;\n"
137 tcm_mod_err("Unable to write f: " + f
)
141 fabric_mod_port
= "tport"
142 fabric_mod_init_port
= "iport"
146 def tcm_mod_build_iSCSI_include(fabric_mod_dir_var
, fabric_mod_name
):
147 global fabric_mod_port
148 global fabric_mod_init_port
151 f
= fabric_mod_dir_var
+ "/" + fabric_mod_name
+ "_base.h"
152 print "Writing file: " + f
156 tcm_mod_err("Unable to open file: " + f
)
158 buf
= "#define " + fabric_mod_name
.upper() + "_VERSION \"v0.1\"\n"
159 buf
+= "#define " + fabric_mod_name
.upper() + "_NAMELEN 32\n"
161 buf
+= "struct " + fabric_mod_name
+ "_nacl {\n"
162 buf
+= " /* ASCII formatted InitiatorName */\n"
163 buf
+= " char iport_name[" + fabric_mod_name
.upper() + "_NAMELEN];\n"
164 buf
+= " /* Returned by " + fabric_mod_name
+ "_make_nodeacl() */\n"
165 buf
+= " struct se_node_acl se_node_acl;\n"
167 buf
+= "struct " + fabric_mod_name
+ "_tpg {\n"
168 buf
+= " /* iSCSI target portal group tag for TCM */\n"
169 buf
+= " u16 tport_tpgt;\n"
170 buf
+= " /* Pointer back to " + fabric_mod_name
+ "_tport */\n"
171 buf
+= " struct " + fabric_mod_name
+ "_tport *tport;\n"
172 buf
+= " /* Returned by " + fabric_mod_name
+ "_make_tpg() */\n"
173 buf
+= " struct se_portal_group se_tpg;\n"
175 buf
+= "struct " + fabric_mod_name
+ "_tport {\n"
176 buf
+= " /* SCSI protocol the tport is providing */\n"
177 buf
+= " u8 tport_proto_id;\n"
178 buf
+= " /* ASCII formatted TargetName for IQN */\n"
179 buf
+= " char tport_name[" + fabric_mod_name
.upper() + "_NAMELEN];\n"
180 buf
+= " /* Returned by " + fabric_mod_name
+ "_make_tport() */\n"
181 buf
+= " struct se_wwn tport_wwn;\n"
186 tcm_mod_err("Unable to write f: " + f
)
190 fabric_mod_port
= "tport"
191 fabric_mod_init_port
= "iport"
195 def tcm_mod_build_base_includes(proto_ident
, fabric_mod_dir_val
, fabric_mod_name
):
197 if proto_ident
== "FC":
198 tcm_mod_build_FC_include(fabric_mod_dir_val
, fabric_mod_name
)
199 elif proto_ident
== "SAS":
200 tcm_mod_build_SAS_include(fabric_mod_dir_val
, fabric_mod_name
)
201 elif proto_ident
== "iSCSI":
202 tcm_mod_build_iSCSI_include(fabric_mod_dir_val
, fabric_mod_name
)
204 print "Unsupported proto_ident: " + proto_ident
209 def tcm_mod_build_configfs(proto_ident
, fabric_mod_dir_var
, fabric_mod_name
):
212 f
= fabric_mod_dir_var
+ "/" + fabric_mod_name
+ "_configfs.c"
213 print "Writing file: " + f
217 tcm_mod_err("Unable to open file: " + f
)
219 buf
= "#include <linux/module.h>\n"
220 buf
+= "#include <linux/moduleparam.h>\n"
221 buf
+= "#include <linux/version.h>\n"
222 buf
+= "#include <generated/utsrelease.h>\n"
223 buf
+= "#include <linux/utsname.h>\n"
224 buf
+= "#include <linux/init.h>\n"
225 buf
+= "#include <linux/slab.h>\n"
226 buf
+= "#include <linux/kthread.h>\n"
227 buf
+= "#include <linux/types.h>\n"
228 buf
+= "#include <linux/string.h>\n"
229 buf
+= "#include <linux/configfs.h>\n"
230 buf
+= "#include <linux/ctype.h>\n"
231 buf
+= "#include <asm/unaligned.h>\n\n"
232 buf
+= "#include <target/target_core_base.h>\n"
233 buf
+= "#include <target/target_core_fabric.h>\n"
234 buf
+= "#include <target/target_core_fabric_configfs.h>\n"
235 buf
+= "#include <target/target_core_configfs.h>\n"
236 buf
+= "#include <target/configfs_macros.h>\n\n"
237 buf
+= "#include \"" + fabric_mod_name
+ "_base.h\"\n"
238 buf
+= "#include \"" + fabric_mod_name
+ "_fabric.h\"\n\n"
240 buf
+= "static const struct target_core_fabric_ops " + fabric_mod_name
+ "_ops;\n\n"
242 buf
+= "static struct se_node_acl *" + fabric_mod_name
+ "_make_nodeacl(\n"
243 buf
+= " struct se_portal_group *se_tpg,\n"
244 buf
+= " struct config_group *group,\n"
245 buf
+= " const char *name)\n"
247 buf
+= " struct se_node_acl *se_nacl, *se_nacl_new;\n"
248 buf
+= " struct " + fabric_mod_name
+ "_nacl *nacl;\n"
250 if proto_ident
== "FC" or proto_ident
== "SAS":
251 buf
+= " u64 wwpn = 0;\n"
253 buf
+= " u32 nexus_depth;\n\n"
254 buf
+= " /* " + fabric_mod_name
+ "_parse_wwn(name, &wwpn, 1) < 0)\n"
255 buf
+= " return ERR_PTR(-EINVAL); */\n"
256 buf
+= " se_nacl_new = " + fabric_mod_name
+ "_alloc_fabric_acl(se_tpg);\n"
257 buf
+= " if (!se_nacl_new)\n"
258 buf
+= " return ERR_PTR(-ENOMEM);\n"
259 buf
+= "//#warning FIXME: Hardcoded nexus depth in " + fabric_mod_name
+ "_make_nodeacl()\n"
260 buf
+= " nexus_depth = 1;\n"
262 buf
+= " * se_nacl_new may be released by core_tpg_add_initiator_node_acl()\n"
263 buf
+= " * when converting a NodeACL from demo mode -> explict\n"
265 buf
+= " se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,\n"
266 buf
+= " name, nexus_depth);\n"
267 buf
+= " if (IS_ERR(se_nacl)) {\n"
268 buf
+= " " + fabric_mod_name
+ "_release_fabric_acl(se_tpg, se_nacl_new);\n"
269 buf
+= " return se_nacl;\n"
272 buf
+= " * Locate our struct " + fabric_mod_name
+ "_nacl and set the FC Nport WWPN\n"
274 buf
+= " nacl = container_of(se_nacl, struct " + fabric_mod_name
+ "_nacl, se_node_acl);\n"
276 if proto_ident
== "FC" or proto_ident
== "SAS":
277 buf
+= " nacl->" + fabric_mod_init_port
+ "_wwpn = wwpn;\n"
279 buf
+= " /* " + fabric_mod_name
+ "_format_wwn(&nacl->" + fabric_mod_init_port
+ "_name[0], " + fabric_mod_name
.upper() + "_NAMELEN, wwpn); */\n\n"
280 buf
+= " return se_nacl;\n"
282 buf
+= "static void " + fabric_mod_name
+ "_drop_nodeacl(struct se_node_acl *se_acl)\n"
284 buf
+= " struct " + fabric_mod_name
+ "_nacl *nacl = container_of(se_acl,\n"
285 buf
+= " struct " + fabric_mod_name
+ "_nacl, se_node_acl);\n"
286 buf
+= " core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);\n"
287 buf
+= " kfree(nacl);\n"
290 buf
+= "static struct se_portal_group *" + fabric_mod_name
+ "_make_tpg(\n"
291 buf
+= " struct se_wwn *wwn,\n"
292 buf
+= " struct config_group *group,\n"
293 buf
+= " const char *name)\n"
295 buf
+= " struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ "*" + fabric_mod_port
+ " = container_of(wwn,\n"
296 buf
+= " struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ ", " + fabric_mod_port
+ "_wwn);\n\n"
297 buf
+= " struct " + fabric_mod_name
+ "_tpg *tpg;\n"
298 buf
+= " unsigned long tpgt;\n"
299 buf
+= " int ret;\n\n"
300 buf
+= " if (strstr(name, \"tpgt_\") != name)\n"
301 buf
+= " return ERR_PTR(-EINVAL);\n"
302 buf
+= " if (kstrtoul(name + 5, 10, &tpgt) || tpgt > UINT_MAX)\n"
303 buf
+= " return ERR_PTR(-EINVAL);\n\n"
304 buf
+= " tpg = kzalloc(sizeof(struct " + fabric_mod_name
+ "_tpg), GFP_KERNEL);\n"
305 buf
+= " if (!tpg) {\n"
306 buf
+= " printk(KERN_ERR \"Unable to allocate struct " + fabric_mod_name
+ "_tpg\");\n"
307 buf
+= " return ERR_PTR(-ENOMEM);\n"
309 buf
+= " tpg->" + fabric_mod_port
+ " = " + fabric_mod_port
+ ";\n"
310 buf
+= " tpg->" + fabric_mod_port
+ "_tpgt = tpgt;\n\n"
311 buf
+= " ret = core_tpg_register(&" + fabric_mod_name
+ "_ops, wwn,\n"
312 buf
+= " &tpg->se_tpg, tpg,\n"
313 buf
+= " TRANSPORT_TPG_TYPE_NORMAL);\n"
314 buf
+= " if (ret < 0) {\n"
315 buf
+= " kfree(tpg);\n"
316 buf
+= " return NULL;\n"
318 buf
+= " return &tpg->se_tpg;\n"
320 buf
+= "static void " + fabric_mod_name
+ "_drop_tpg(struct se_portal_group *se_tpg)\n"
322 buf
+= " struct " + fabric_mod_name
+ "_tpg *tpg = container_of(se_tpg,\n"
323 buf
+= " struct " + fabric_mod_name
+ "_tpg, se_tpg);\n\n"
324 buf
+= " core_tpg_deregister(se_tpg);\n"
325 buf
+= " kfree(tpg);\n"
328 buf
+= "static struct se_wwn *" + fabric_mod_name
+ "_make_" + fabric_mod_port
+ "(\n"
329 buf
+= " struct target_fabric_configfs *tf,\n"
330 buf
+= " struct config_group *group,\n"
331 buf
+= " const char *name)\n"
333 buf
+= " struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ " *" + fabric_mod_port
+ ";\n"
335 if proto_ident
== "FC" or proto_ident
== "SAS":
336 buf
+= " u64 wwpn = 0;\n\n"
338 buf
+= " /* if (" + fabric_mod_name
+ "_parse_wwn(name, &wwpn, 1) < 0)\n"
339 buf
+= " return ERR_PTR(-EINVAL); */\n\n"
340 buf
+= " " + fabric_mod_port
+ " = kzalloc(sizeof(struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ "), GFP_KERNEL);\n"
341 buf
+= " if (!" + fabric_mod_port
+ ") {\n"
342 buf
+= " printk(KERN_ERR \"Unable to allocate struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ "\");\n"
343 buf
+= " return ERR_PTR(-ENOMEM);\n"
346 if proto_ident
== "FC" or proto_ident
== "SAS":
347 buf
+= " " + fabric_mod_port
+ "->" + fabric_mod_port
+ "_wwpn = wwpn;\n"
349 buf
+= " /* " + fabric_mod_name
+ "_format_wwn(&" + fabric_mod_port
+ "->" + fabric_mod_port
+ "_name[0], " + fabric_mod_name
.upper() + "_NAMELEN, wwpn); */\n\n"
350 buf
+= " return &" + fabric_mod_port
+ "->" + fabric_mod_port
+ "_wwn;\n"
352 buf
+= "static void " + fabric_mod_name
+ "_drop_" + fabric_mod_port
+ "(struct se_wwn *wwn)\n"
354 buf
+= " struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ " *" + fabric_mod_port
+ " = container_of(wwn,\n"
355 buf
+= " struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ ", " + fabric_mod_port
+ "_wwn);\n"
356 buf
+= " kfree(" + fabric_mod_port
+ ");\n"
358 buf
+= "static ssize_t " + fabric_mod_name
+ "_wwn_show_attr_version(\n"
359 buf
+= " struct target_fabric_configfs *tf,\n"
360 buf
+= " char *page)\n"
362 buf
+= " return sprintf(page, \"" + fabric_mod_name
.upper() + " fabric module %s on %s/%s\"\n"
363 buf
+= " \"on \"UTS_RELEASE\"\\n\", " + fabric_mod_name
.upper() + "_VERSION, utsname()->sysname,\n"
364 buf
+= " utsname()->machine);\n"
366 buf
+= "TF_WWN_ATTR_RO(" + fabric_mod_name
+ ", version);\n\n"
367 buf
+= "static struct configfs_attribute *" + fabric_mod_name
+ "_wwn_attrs[] = {\n"
368 buf
+= " &" + fabric_mod_name
+ "_wwn_version.attr,\n"
372 buf
+= "static const struct target_core_fabric_ops " + fabric_mod_name
+ "_ops = {\n"
373 buf
+= " .module = THIS_MODULE,\n"
374 buf
+= " .name = " + fabric_mod_name
+ ",\n"
375 buf
+= " .get_fabric_proto_ident = " + fabric_mod_name
+ "_get_fabric_proto_ident,\n"
376 buf
+= " .get_fabric_name = " + fabric_mod_name
+ "_get_fabric_name,\n"
377 buf
+= " .get_fabric_proto_ident = " + fabric_mod_name
+ "_get_fabric_proto_ident,\n"
378 buf
+= " .tpg_get_wwn = " + fabric_mod_name
+ "_get_fabric_wwn,\n"
379 buf
+= " .tpg_get_tag = " + fabric_mod_name
+ "_get_tag,\n"
380 buf
+= " .tpg_get_default_depth = " + fabric_mod_name
+ "_get_default_depth,\n"
381 buf
+= " .tpg_get_pr_transport_id = " + fabric_mod_name
+ "_get_pr_transport_id,\n"
382 buf
+= " .tpg_get_pr_transport_id_len = " + fabric_mod_name
+ "_get_pr_transport_id_len,\n"
383 buf
+= " .tpg_parse_pr_out_transport_id = " + fabric_mod_name
+ "_parse_pr_out_transport_id,\n"
384 buf
+= " .tpg_check_demo_mode = " + fabric_mod_name
+ "_check_false,\n"
385 buf
+= " .tpg_check_demo_mode_cache = " + fabric_mod_name
+ "_check_true,\n"
386 buf
+= " .tpg_check_demo_mode_write_protect = " + fabric_mod_name
+ "_check_true,\n"
387 buf
+= " .tpg_check_prod_mode_write_protect = " + fabric_mod_name
+ "_check_false,\n"
388 buf
+= " .tpg_alloc_fabric_acl = " + fabric_mod_name
+ "_alloc_fabric_acl,\n"
389 buf
+= " .tpg_release_fabric_acl = " + fabric_mod_name
+ "_release_fabric_acl,\n"
390 buf
+= " .tpg_get_inst_index = " + fabric_mod_name
+ "_tpg_get_inst_index,\n"
391 buf
+= " .release_cmd = " + fabric_mod_name
+ "_release_cmd,\n"
392 buf
+= " .shutdown_session = " + fabric_mod_name
+ "_shutdown_session,\n"
393 buf
+= " .close_session = " + fabric_mod_name
+ "_close_session,\n"
394 buf
+= " .sess_get_index = " + fabric_mod_name
+ "_sess_get_index,\n"
395 buf
+= " .sess_get_initiator_sid = NULL,\n"
396 buf
+= " .write_pending = " + fabric_mod_name
+ "_write_pending,\n"
397 buf
+= " .write_pending_status = " + fabric_mod_name
+ "_write_pending_status,\n"
398 buf
+= " .set_default_node_attributes = " + fabric_mod_name
+ "_set_default_node_attrs,\n"
399 buf
+= " .get_task_tag = " + fabric_mod_name
+ "_get_task_tag,\n"
400 buf
+= " .get_cmd_state = " + fabric_mod_name
+ "_get_cmd_state,\n"
401 buf
+= " .queue_data_in = " + fabric_mod_name
+ "_queue_data_in,\n"
402 buf
+= " .queue_status = " + fabric_mod_name
+ "_queue_status,\n"
403 buf
+= " .queue_tm_rsp = " + fabric_mod_name
+ "_queue_tm_rsp,\n"
404 buf
+= " .aborted_task = " + fabric_mod_name
+ "_aborted_task,\n"
406 buf
+= " * Setup function pointers for generic logic in target_core_fabric_configfs.c\n"
408 buf
+= " .fabric_make_wwn = " + fabric_mod_name
+ "_make_" + fabric_mod_port
+ ",\n"
409 buf
+= " .fabric_drop_wwn = " + fabric_mod_name
+ "_drop_" + fabric_mod_port
+ ",\n"
410 buf
+= " .fabric_make_tpg = " + fabric_mod_name
+ "_make_tpg,\n"
411 buf
+= " .fabric_drop_tpg = " + fabric_mod_name
+ "_drop_tpg,\n"
412 buf
+= " .fabric_post_link = NULL,\n"
413 buf
+= " .fabric_pre_unlink = NULL,\n"
414 buf
+= " .fabric_make_np = NULL,\n"
415 buf
+= " .fabric_drop_np = NULL,\n"
416 buf
+= " .fabric_make_nodeacl = " + fabric_mod_name
+ "_make_nodeacl,\n"
417 buf
+= " .fabric_drop_nodeacl = " + fabric_mod_name
+ "_drop_nodeacl,\n"
419 buf
+= " .tfc_wwn_attrs = " + fabric_mod_name
+ "_wwn_attrs;\n"
422 buf
+= "static int __init " + fabric_mod_name
+ "_init(void)\n"
424 buf
+= " return target_register_template(" + fabric_mod_name
+ "_ops);\n"
427 buf
+= "static void __exit " + fabric_mod_name
+ "_exit(void)\n"
429 buf
+= " target_unregister_template(" + fabric_mod_name
+ "_ops);\n"
432 buf
+= "MODULE_DESCRIPTION(\"" + fabric_mod_name
.upper() + " series fabric driver\");\n"
433 buf
+= "MODULE_LICENSE(\"GPL\");\n"
434 buf
+= "module_init(" + fabric_mod_name
+ "_init);\n"
435 buf
+= "module_exit(" + fabric_mod_name
+ "_exit);\n"
439 tcm_mod_err("Unable to write f: " + f
)
445 def tcm_mod_scan_fabric_ops(tcm_dir
):
447 fabric_ops_api
= tcm_dir
+ "include/target/target_core_fabric.h"
449 print "Using tcm_mod_scan_fabric_ops: " + fabric_ops_api
452 p
= open(fabric_ops_api
, 'r')
456 if process_fo
== 0 and re
.search('struct target_core_fabric_ops {', line
):
463 # Search for function pointer
464 if not re
.search('\(\*', line
):
467 fabric_ops
.append(line
.rstrip())
471 # Search for function pointer
472 if not re
.search('\(\*', line
):
475 fabric_ops
.append(line
.rstrip())
480 def tcm_mod_dump_fabric_ops(proto_ident
, fabric_mod_dir_var
, fabric_mod_name
):
484 f
= fabric_mod_dir_var
+ "/" + fabric_mod_name
+ "_fabric.c"
485 print "Writing file: " + f
489 tcm_mod_err("Unable to open file: " + f
)
491 fi
= fabric_mod_dir_var
+ "/" + fabric_mod_name
+ "_fabric.h"
492 print "Writing file: " + fi
496 tcm_mod_err("Unable to open file: " + fi
)
498 buf
= "#include <linux/slab.h>\n"
499 buf
+= "#include <linux/kthread.h>\n"
500 buf
+= "#include <linux/types.h>\n"
501 buf
+= "#include <linux/list.h>\n"
502 buf
+= "#include <linux/types.h>\n"
503 buf
+= "#include <linux/string.h>\n"
504 buf
+= "#include <linux/ctype.h>\n"
505 buf
+= "#include <asm/unaligned.h>\n"
506 buf
+= "#include <scsi/scsi.h>\n"
507 buf
+= "#include <scsi/scsi_host.h>\n"
508 buf
+= "#include <scsi/scsi_device.h>\n"
509 buf
+= "#include <scsi/scsi_cmnd.h>\n"
510 buf
+= "#include <scsi/libfc.h>\n\n"
511 buf
+= "#include <target/target_core_base.h>\n"
512 buf
+= "#include <target/target_core_fabric.h>\n"
513 buf
+= "#include <target/target_core_configfs.h>\n\n"
514 buf
+= "#include \"" + fabric_mod_name
+ "_base.h\"\n"
515 buf
+= "#include \"" + fabric_mod_name
+ "_fabric.h\"\n\n"
517 buf
+= "int " + fabric_mod_name
+ "_check_true(struct se_portal_group *se_tpg)\n"
519 buf
+= " return 1;\n"
521 bufi
+= "int " + fabric_mod_name
+ "_check_true(struct se_portal_group *);\n"
523 buf
+= "int " + fabric_mod_name
+ "_check_false(struct se_portal_group *se_tpg)\n"
525 buf
+= " return 0;\n"
527 bufi
+= "int " + fabric_mod_name
+ "_check_false(struct se_portal_group *);\n"
529 total_fabric_ops
= len(fabric_ops
)
532 while i
< total_fabric_ops
:
535 # print "fabric_ops: " + fo
537 if re
.search('get_fabric_name', fo
):
538 buf
+= "char *" + fabric_mod_name
+ "_get_fabric_name(void)\n"
540 buf
+= " return \"" + fabric_mod_name
+ "\";\n"
542 bufi
+= "char *" + fabric_mod_name
+ "_get_fabric_name(void);\n"
545 if re
.search('get_fabric_proto_ident', fo
):
546 buf
+= "u8 " + fabric_mod_name
+ "_get_fabric_proto_ident(struct se_portal_group *se_tpg)\n"
548 buf
+= " struct " + fabric_mod_name
+ "_tpg *tpg = container_of(se_tpg,\n"
549 buf
+= " struct " + fabric_mod_name
+ "_tpg, se_tpg);\n"
550 buf
+= " struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ " *" + fabric_mod_port
+ " = tpg->" + fabric_mod_port
+ ";\n"
551 buf
+= " u8 proto_id;\n\n"
552 buf
+= " switch (" + fabric_mod_port
+ "->" + fabric_mod_port
+ "_proto_id) {\n"
553 if proto_ident
== "FC":
554 buf
+= " case SCSI_PROTOCOL_FCP:\n"
556 buf
+= " proto_id = fc_get_fabric_proto_ident(se_tpg);\n"
558 elif proto_ident
== "SAS":
559 buf
+= " case SCSI_PROTOCOL_SAS:\n"
561 buf
+= " proto_id = sas_get_fabric_proto_ident(se_tpg);\n"
563 elif proto_ident
== "iSCSI":
564 buf
+= " case SCSI_PROTOCOL_ISCSI:\n"
566 buf
+= " proto_id = iscsi_get_fabric_proto_ident(se_tpg);\n"
570 buf
+= " return proto_id;\n"
572 bufi
+= "u8 " + fabric_mod_name
+ "_get_fabric_proto_ident(struct se_portal_group *);\n"
574 if re
.search('get_wwn', fo
):
575 buf
+= "char *" + fabric_mod_name
+ "_get_fabric_wwn(struct se_portal_group *se_tpg)\n"
577 buf
+= " struct " + fabric_mod_name
+ "_tpg *tpg = container_of(se_tpg,\n"
578 buf
+= " struct " + fabric_mod_name
+ "_tpg, se_tpg);\n"
579 buf
+= " struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ " *" + fabric_mod_port
+ " = tpg->" + fabric_mod_port
+ ";\n\n"
580 buf
+= " return &" + fabric_mod_port
+ "->" + fabric_mod_port
+ "_name[0];\n"
582 bufi
+= "char *" + fabric_mod_name
+ "_get_fabric_wwn(struct se_portal_group *);\n"
584 if re
.search('get_tag', fo
):
585 buf
+= "u16 " + fabric_mod_name
+ "_get_tag(struct se_portal_group *se_tpg)\n"
587 buf
+= " struct " + fabric_mod_name
+ "_tpg *tpg = container_of(se_tpg,\n"
588 buf
+= " struct " + fabric_mod_name
+ "_tpg, se_tpg);\n"
589 buf
+= " return tpg->" + fabric_mod_port
+ "_tpgt;\n"
591 bufi
+= "u16 " + fabric_mod_name
+ "_get_tag(struct se_portal_group *);\n"
593 if re
.search('get_default_depth', fo
):
594 buf
+= "u32 " + fabric_mod_name
+ "_get_default_depth(struct se_portal_group *se_tpg)\n"
596 buf
+= " return 1;\n"
598 bufi
+= "u32 " + fabric_mod_name
+ "_get_default_depth(struct se_portal_group *);\n"
600 if re
.search('get_pr_transport_id\)\(', fo
):
601 buf
+= "u32 " + fabric_mod_name
+ "_get_pr_transport_id(\n"
602 buf
+= " struct se_portal_group *se_tpg,\n"
603 buf
+= " struct se_node_acl *se_nacl,\n"
604 buf
+= " struct t10_pr_registration *pr_reg,\n"
605 buf
+= " int *format_code,\n"
606 buf
+= " unsigned char *buf)\n"
608 buf
+= " struct " + fabric_mod_name
+ "_tpg *tpg = container_of(se_tpg,\n"
609 buf
+= " struct " + fabric_mod_name
+ "_tpg, se_tpg);\n"
610 buf
+= " struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ " *" + fabric_mod_port
+ " = tpg->" + fabric_mod_port
+ ";\n"
611 buf
+= " int ret = 0;\n\n"
612 buf
+= " switch (" + fabric_mod_port
+ "->" + fabric_mod_port
+ "_proto_id) {\n"
613 if proto_ident
== "FC":
614 buf
+= " case SCSI_PROTOCOL_FCP:\n"
616 buf
+= " ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
617 buf
+= " format_code, buf);\n"
619 elif proto_ident
== "SAS":
620 buf
+= " case SCSI_PROTOCOL_SAS:\n"
622 buf
+= " ret = sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
623 buf
+= " format_code, buf);\n"
625 elif proto_ident
== "iSCSI":
626 buf
+= " case SCSI_PROTOCOL_ISCSI:\n"
628 buf
+= " ret = iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
629 buf
+= " format_code, buf);\n"
633 buf
+= " return ret;\n"
635 bufi
+= "u32 " + fabric_mod_name
+ "_get_pr_transport_id(struct se_portal_group *,\n"
636 bufi
+= " struct se_node_acl *, struct t10_pr_registration *,\n"
637 bufi
+= " int *, unsigned char *);\n"
639 if re
.search('get_pr_transport_id_len\)\(', fo
):
640 buf
+= "u32 " + fabric_mod_name
+ "_get_pr_transport_id_len(\n"
641 buf
+= " struct se_portal_group *se_tpg,\n"
642 buf
+= " struct se_node_acl *se_nacl,\n"
643 buf
+= " struct t10_pr_registration *pr_reg,\n"
644 buf
+= " int *format_code)\n"
646 buf
+= " struct " + fabric_mod_name
+ "_tpg *tpg = container_of(se_tpg,\n"
647 buf
+= " struct " + fabric_mod_name
+ "_tpg, se_tpg);\n"
648 buf
+= " struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ " *" + fabric_mod_port
+ " = tpg->" + fabric_mod_port
+ ";\n"
649 buf
+= " int ret = 0;\n\n"
650 buf
+= " switch (" + fabric_mod_port
+ "->" + fabric_mod_port
+ "_proto_id) {\n"
651 if proto_ident
== "FC":
652 buf
+= " case SCSI_PROTOCOL_FCP:\n"
654 buf
+= " ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
655 buf
+= " format_code);\n"
657 elif proto_ident
== "SAS":
658 buf
+= " case SCSI_PROTOCOL_SAS:\n"
660 buf
+= " ret = sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
661 buf
+= " format_code);\n"
663 elif proto_ident
== "iSCSI":
664 buf
+= " case SCSI_PROTOCOL_ISCSI:\n"
666 buf
+= " ret = iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
667 buf
+= " format_code);\n"
672 buf
+= " return ret;\n"
674 bufi
+= "u32 " + fabric_mod_name
+ "_get_pr_transport_id_len(struct se_portal_group *,\n"
675 bufi
+= " struct se_node_acl *, struct t10_pr_registration *,\n"
678 if re
.search('parse_pr_out_transport_id\)\(', fo
):
679 buf
+= "char *" + fabric_mod_name
+ "_parse_pr_out_transport_id(\n"
680 buf
+= " struct se_portal_group *se_tpg,\n"
681 buf
+= " const char *buf,\n"
682 buf
+= " u32 *out_tid_len,\n"
683 buf
+= " char **port_nexus_ptr)\n"
685 buf
+= " struct " + fabric_mod_name
+ "_tpg *tpg = container_of(se_tpg,\n"
686 buf
+= " struct " + fabric_mod_name
+ "_tpg, se_tpg);\n"
687 buf
+= " struct " + fabric_mod_name
+ "_" + fabric_mod_port
+ " *" + fabric_mod_port
+ " = tpg->" + fabric_mod_port
+ ";\n"
688 buf
+= " char *tid = NULL;\n\n"
689 buf
+= " switch (" + fabric_mod_port
+ "->" + fabric_mod_port
+ "_proto_id) {\n"
690 if proto_ident
== "FC":
691 buf
+= " case SCSI_PROTOCOL_FCP:\n"
693 buf
+= " tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
694 buf
+= " port_nexus_ptr);\n"
695 elif proto_ident
== "SAS":
696 buf
+= " case SCSI_PROTOCOL_SAS:\n"
698 buf
+= " tid = sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
699 buf
+= " port_nexus_ptr);\n"
700 elif proto_ident
== "iSCSI":
701 buf
+= " case SCSI_PROTOCOL_ISCSI:\n"
703 buf
+= " tid = iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
704 buf
+= " port_nexus_ptr);\n"
707 buf
+= " return tid;\n"
709 bufi
+= "char *" + fabric_mod_name
+ "_parse_pr_out_transport_id(struct se_portal_group *,\n"
710 bufi
+= " const char *, u32 *, char **);\n"
712 if re
.search('alloc_fabric_acl\)\(', fo
):
713 buf
+= "struct se_node_acl *" + fabric_mod_name
+ "_alloc_fabric_acl(struct se_portal_group *se_tpg)\n"
715 buf
+= " struct " + fabric_mod_name
+ "_nacl *nacl;\n\n"
716 buf
+= " nacl = kzalloc(sizeof(struct " + fabric_mod_name
+ "_nacl), GFP_KERNEL);\n"
717 buf
+= " if (!nacl) {\n"
718 buf
+= " printk(KERN_ERR \"Unable to allocate struct " + fabric_mod_name
+ "_nacl\\n\");\n"
719 buf
+= " return NULL;\n"
721 buf
+= " return &nacl->se_node_acl;\n"
723 bufi
+= "struct se_node_acl *" + fabric_mod_name
+ "_alloc_fabric_acl(struct se_portal_group *);\n"
725 if re
.search('release_fabric_acl\)\(', fo
):
726 buf
+= "void " + fabric_mod_name
+ "_release_fabric_acl(\n"
727 buf
+= " struct se_portal_group *se_tpg,\n"
728 buf
+= " struct se_node_acl *se_nacl)\n"
730 buf
+= " struct " + fabric_mod_name
+ "_nacl *nacl = container_of(se_nacl,\n"
731 buf
+= " struct " + fabric_mod_name
+ "_nacl, se_node_acl);\n"
732 buf
+= " kfree(nacl);\n"
734 bufi
+= "void " + fabric_mod_name
+ "_release_fabric_acl(struct se_portal_group *,\n"
735 bufi
+= " struct se_node_acl *);\n"
737 if re
.search('tpg_get_inst_index\)\(', fo
):
738 buf
+= "u32 " + fabric_mod_name
+ "_tpg_get_inst_index(struct se_portal_group *se_tpg)\n"
740 buf
+= " return 1;\n"
742 bufi
+= "u32 " + fabric_mod_name
+ "_tpg_get_inst_index(struct se_portal_group *);\n"
744 if re
.search('\*release_cmd\)\(', fo
):
745 buf
+= "void " + fabric_mod_name
+ "_release_cmd(struct se_cmd *se_cmd)\n"
749 bufi
+= "void " + fabric_mod_name
+ "_release_cmd(struct se_cmd *);\n"
751 if re
.search('shutdown_session\)\(', fo
):
752 buf
+= "int " + fabric_mod_name
+ "_shutdown_session(struct se_session *se_sess)\n"
754 buf
+= " return 0;\n"
756 bufi
+= "int " + fabric_mod_name
+ "_shutdown_session(struct se_session *);\n"
758 if re
.search('close_session\)\(', fo
):
759 buf
+= "void " + fabric_mod_name
+ "_close_session(struct se_session *se_sess)\n"
763 bufi
+= "void " + fabric_mod_name
+ "_close_session(struct se_session *);\n"
765 if re
.search('sess_get_index\)\(', fo
):
766 buf
+= "u32 " + fabric_mod_name
+ "_sess_get_index(struct se_session *se_sess)\n"
768 buf
+= " return 0;\n"
770 bufi
+= "u32 " + fabric_mod_name
+ "_sess_get_index(struct se_session *);\n"
772 if re
.search('write_pending\)\(', fo
):
773 buf
+= "int " + fabric_mod_name
+ "_write_pending(struct se_cmd *se_cmd)\n"
775 buf
+= " return 0;\n"
777 bufi
+= "int " + fabric_mod_name
+ "_write_pending(struct se_cmd *);\n"
779 if re
.search('write_pending_status\)\(', fo
):
780 buf
+= "int " + fabric_mod_name
+ "_write_pending_status(struct se_cmd *se_cmd)\n"
782 buf
+= " return 0;\n"
784 bufi
+= "int " + fabric_mod_name
+ "_write_pending_status(struct se_cmd *);\n"
786 if re
.search('set_default_node_attributes\)\(', fo
):
787 buf
+= "void " + fabric_mod_name
+ "_set_default_node_attrs(struct se_node_acl *nacl)\n"
791 bufi
+= "void " + fabric_mod_name
+ "_set_default_node_attrs(struct se_node_acl *);\n"
793 if re
.search('get_task_tag\)\(', fo
):
794 buf
+= "u32 " + fabric_mod_name
+ "_get_task_tag(struct se_cmd *se_cmd)\n"
796 buf
+= " return 0;\n"
798 bufi
+= "u32 " + fabric_mod_name
+ "_get_task_tag(struct se_cmd *);\n"
800 if re
.search('get_cmd_state\)\(', fo
):
801 buf
+= "int " + fabric_mod_name
+ "_get_cmd_state(struct se_cmd *se_cmd)\n"
803 buf
+= " return 0;\n"
805 bufi
+= "int " + fabric_mod_name
+ "_get_cmd_state(struct se_cmd *);\n"
807 if re
.search('queue_data_in\)\(', fo
):
808 buf
+= "int " + fabric_mod_name
+ "_queue_data_in(struct se_cmd *se_cmd)\n"
810 buf
+= " return 0;\n"
812 bufi
+= "int " + fabric_mod_name
+ "_queue_data_in(struct se_cmd *);\n"
814 if re
.search('queue_status\)\(', fo
):
815 buf
+= "int " + fabric_mod_name
+ "_queue_status(struct se_cmd *se_cmd)\n"
817 buf
+= " return 0;\n"
819 bufi
+= "int " + fabric_mod_name
+ "_queue_status(struct se_cmd *);\n"
821 if re
.search('queue_tm_rsp\)\(', fo
):
822 buf
+= "void " + fabric_mod_name
+ "_queue_tm_rsp(struct se_cmd *se_cmd)\n"
826 bufi
+= "void " + fabric_mod_name
+ "_queue_tm_rsp(struct se_cmd *);\n"
828 if re
.search('aborted_task\)\(', fo
):
829 buf
+= "void " + fabric_mod_name
+ "_aborted_task(struct se_cmd *se_cmd)\n"
833 bufi
+= "void " + fabric_mod_name
+ "_aborted_task(struct se_cmd *);\n"
837 tcm_mod_err("Unable to write f: " + f
)
843 tcm_mod_err("Unable to write fi: " + fi
)
848 def tcm_mod_build_kbuild(fabric_mod_dir_var
, fabric_mod_name
):
851 f
= fabric_mod_dir_var
+ "/Makefile"
852 print "Writing file: " + f
856 tcm_mod_err("Unable to open file: " + f
)
858 buf
+= fabric_mod_name
+ "-objs := " + fabric_mod_name
+ "_fabric.o \\\n"
859 buf
+= " " + fabric_mod_name
+ "_configfs.o\n"
860 buf
+= "obj-$(CONFIG_" + fabric_mod_name
.upper() + ") += " + fabric_mod_name
+ ".o\n"
864 tcm_mod_err("Unable to write f: " + f
)
869 def tcm_mod_build_kconfig(fabric_mod_dir_var
, fabric_mod_name
):
872 f
= fabric_mod_dir_var
+ "/Kconfig"
873 print "Writing file: " + f
877 tcm_mod_err("Unable to open file: " + f
)
879 buf
= "config " + fabric_mod_name
.upper() + "\n"
880 buf
+= " tristate \"" + fabric_mod_name
.upper() + " fabric module\"\n"
881 buf
+= " depends on TARGET_CORE && CONFIGFS_FS\n"
882 buf
+= " default n\n"
883 buf
+= " ---help---\n"
884 buf
+= " Say Y here to enable the " + fabric_mod_name
.upper() + " fabric module\n"
888 tcm_mod_err("Unable to write f: " + f
)
893 def tcm_mod_add_kbuild(tcm_dir
, fabric_mod_name
):
894 buf
= "obj-$(CONFIG_" + fabric_mod_name
.upper() + ") += " + fabric_mod_name
.lower() + "/\n"
895 kbuild
= tcm_dir
+ "/drivers/target/Makefile"
897 f
= open(kbuild
, 'a')
902 def tcm_mod_add_kconfig(tcm_dir
, fabric_mod_name
):
903 buf
= "source \"drivers/target/" + fabric_mod_name
.lower() + "/Kconfig\"\n"
904 kconfig
= tcm_dir
+ "/drivers/target/Kconfig"
906 f
= open(kconfig
, 'a')
911 def main(modname
, proto_ident
):
913 # proto_ident = "SAS"
914 # proto_ident = "iSCSI"
916 tcm_dir
= os
.getcwd();
918 print "tcm_dir: " + tcm_dir
919 fabric_mod_name
= modname
920 fabric_mod_dir
= tcm_dir
+ "drivers/target/" + fabric_mod_name
921 print "Set fabric_mod_name: " + fabric_mod_name
922 print "Set fabric_mod_dir: " + fabric_mod_dir
923 print "Using proto_ident: " + proto_ident
925 if proto_ident
!= "FC" and proto_ident
!= "SAS" and proto_ident
!= "iSCSI":
926 print "Unsupported proto_ident: " + proto_ident
929 ret
= tcm_mod_create_module_subdir(fabric_mod_dir
)
931 print "tcm_mod_create_module_subdir() failed because module already exists!"
934 tcm_mod_build_base_includes(proto_ident
, fabric_mod_dir
, fabric_mod_name
)
935 tcm_mod_scan_fabric_ops(tcm_dir
)
936 tcm_mod_dump_fabric_ops(proto_ident
, fabric_mod_dir
, fabric_mod_name
)
937 tcm_mod_build_configfs(proto_ident
, fabric_mod_dir
, fabric_mod_name
)
938 tcm_mod_build_kbuild(fabric_mod_dir
, fabric_mod_name
)
939 tcm_mod_build_kconfig(fabric_mod_dir
, fabric_mod_name
)
941 input = raw_input("Would you like to add " + fabric_mod_name
+ " to drivers/target/Makefile..? [yes,no]: ")
942 if input == "yes" or input == "y":
943 tcm_mod_add_kbuild(tcm_dir
, fabric_mod_name
)
945 input = raw_input("Would you like to add " + fabric_mod_name
+ " to drivers/target/Kconfig..? [yes,no]: ")
946 if input == "yes" or input == "y":
947 tcm_mod_add_kconfig(tcm_dir
, fabric_mod_name
)
951 parser
= optparse
.OptionParser()
952 parser
.add_option('-m', '--modulename', help='Module name', dest
='modname',
953 action
='store', nargs
=1, type='string')
954 parser
.add_option('-p', '--protoident', help='Protocol Ident', dest
='protoident',
955 action
='store', nargs
=1, type='string')
957 (opts
, args
) = parser
.parse_args()
959 mandatories
= ['modname', 'protoident']
960 for m
in mandatories
:
961 if not opts
.__dict
__[m
]:
962 print "mandatory option is missing\n"
966 if __name__
== "__main__":
968 main(str(opts
.modname
), opts
.protoident
)
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